10.1.21. Possible malfunctions of the electric pump and ways of their elimination

Possible malfunctions of the electric pump and ways of their elimination
Cause of defect
Way of elimination
At inclusion the electric pump does not work
There is no contact in connecting blocks
To check reliability of connections and to eliminate malfunction
The switch does not work
To Prverit and repair it
Lag of brushes, oiling or pollution by electric motor collector anchor dust
To disassemble the electric motor, to eliminate lag of brushes. To wipe a collector with the rag moistened in gasoline. To clear grooves between collector plates
Oxidation of contacts of a fusible insert and its nest
To clear contacts of a nest of a fusible insert
The safety lock fused
To find a cause of defect, to eliminate it and to replace a safety lock